Central Atlantic Ocean floor
E95729
The Central Atlantic Ocean floor is a vast underwater region characterized by mid-ocean ridges, fracture zones, and sediment-covered abyssal plains formed by seafloor spreading between the Americas and Africa-Europe.
Aliases (1)
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
ocean floor region
→
submarine physiographic province → |
| associatedWith |
linear gravity anomalies along fracture zones
→
magnetic seafloor spreading anomalies → |
| boundedBy |
Africa
NERFINISHED
→
Americas NERFINISHED → Europe NERFINISHED → |
| characterizedBy |
abyssal plains
→
fracture zones → mid-ocean ridges → sediment-covered seafloor → |
| contains |
Mid-Atlantic Ridge
NERFINISHED
→
abyssal hills → fracture zone valleys → sediment drifts → transform faults → |
| coveredBy |
pelagic sediments
→
turbidite deposits in some basins → |
| developedSince |
Mesozoic era
NERFINISHED
→
|
| formedBy |
plate tectonics
→
seafloor spreading → |
| hasBathymetryRange |
approximately 3000 to 6000 meters water depth
→
|
| hasCrustType |
oceanic crust
→
|
| hasProcess |
basaltic crust formation at spreading centers
→
hydrothermal circulation near ridge axis → sediment accumulation on abyssal plains → |
| hasSpreadingRate |
slow to intermediate
→
|
| hasTopography |
relatively flat abyssal plains away from ridge
→
ridge-and-valley morphology along ridge axis → |
| influences |
deep ocean circulation pathways
→
distribution of deep-sea ecosystems → |
| locatedIn |
Atlantic Ocean
→
Central Atlantic Ocean NERFINISHED → |
| mappedUsing |
multibeam bathymetry
→
satellite altimetry-derived gravity data → seismic reflection profiling → |
| olderToward |
continental margins of Africa-Europe
→
continental margins of Americas → |
| originatedFrom |
breakup of Pangaea
→
|
| partOf |
World Ocean
NERFINISHED
→
global mid-ocean ridge system → |
| separates |
American plates from African and Eurasian plates
→
|
| studiedBy |
geophysicists
→
marine geologists → |
| youngerNear |
Mid-Atlantic Ridge
NERFINISHED
→
|
Referenced by (2)
| Subject (surface form when different) | Predicate |
|---|---|
|
Bahama Banks
("Atlantic abyssal plain")
→
|
borderedBy |
|
African Plate
→
|
includesRegion |